Electron microscopic changes of detrusor in benign enlargement of prostate and its clinical correlation

Vol. 43 (6): 1092-1101, November – December, 2017

doi: 10.1590/S1677-5538.IBJU.2016.0350


ORIGINAL ARTICLE

Sher Singh Yadav 1,Rohit Bhattar 1, Lokesh Sharma 2, Gautam Banga 3, T. C. Sadasukhi 4
1 Department of Urology and Renal Transplantation, SMS Medical College, Jaipur, Rajasthan, India; 2 Department of Urology, NIMS Medical College, Jaipur, Rajasthan, India; 3 SCI International Hospital, New Delhi, India; 4 Department of Urology, Mahatma Gandhi Hospital, Jaipur, Rajasthan, India

ABSTRACT

Aims: To study the ultra structural changes in bladder musculature in cases of BPE and their clinical relevance.

Material and Methods: In this descriptive longitudinal, controlled, observational study patients were enrolled into three groups, group 1, group 2A and group 2B. Control group (group-1) consisted of age matched normal male patients, who underwent sur­veillance or diagnostic cystoscopy for microscopic hematuria or irritative symptoms. Case group (group-2) comprised of patients with BPE, undergoing TURP. Case group (group-2) was further classified into: Category 2A (patients not on catheter) and cat­egory 2B (patients on catheter). All relevant clinical parameters like IPSS, prostate size, Qmax, PVR were recorded. Cystoscopy and bladder biopsy were performed in all patients. Various ultrastructural parameters like myocytes, fascicular pattern, intersti­tial tissue, nerve hypertrophy and cell junction pattern were analyzed under electron microscope and they were clinically correlated using appropriate statistical tests.

Results: Control group had significant difference as compared to case group in terms of baseline parameters like IPSS, flow rate and prostate size, both preoperatively and postoperatively, except for PVR, which was seen only preoperatively. There was statis­tically significant difference in ultrastructural patterns between case and control group in all five electron microscopic patterns. However, no significant difference was found between the subcategories of case groups.

Conclusions: BPE is responsible for ultra structural changes in detrusor muscle and these changes remain persistent even after TURP. Nerve hypertrophy, which was not thoroughly discussed in previous studies, is also one of the salient feature of this study.

Keywords:  Prostatic Hyperplasia; Prostate; Urinary Bladder

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